Temporary closure for bung-holes or the like.



110. 777.100. Y 121117510131111 11110. 10, 1004. A. 110111111 0 1. BOERSOHINGER.

TEMPORARY GLOSURE POR BUNG HULES OR THB LIKE.

APPLICATION FILED 111111.10. 1004.

No MODEL. QSHBBTSWSHBBT 1.

THE/H ATTORNEY No. 777,100. PATENTED DEC. 13, 1904. A. HUBER @a J. BOERSUHINGER.

TEMPORARY GLUSURB PGR BUNG HOLES 0R THB LKE.

APPLICATION FILED APR.18, 1004.

Z SHEETS-SHEET 2.

N0 MODEL.

WITN ESSES:

THEIR ATTORNEY No. I777,100.

Patented lDeeember 13, 1904.

ll jl ii ariair trltlll AUGUST HOFRR AND JACOB BOERSCHINGER, OF NlillllfT YORK, N. if.

TEIVIPOHWY CLSUWE IFW HUNGtwl-lOLES OH "lil'llE MME.,

SPECFICATON forming part of Letters Patent No. P777,100, dated IlDeeemloer 13, 1904i. Application filed April 18, 1904. Serial No. 203,618. (No model.)

To @ZZ wiz/m17, it may cori/007%:

Be it known that we, AUsUs'r Hom-nt and JACOB Bonnsenrnenn, citizens oi the United States, and resid ents of New York city, in the county oi New York and State o'l' New York, have invented certain new and use'lul lmproveniente in Vllemporary Closures ilor Bung- Holes "or the Like, of which the following is a specilication.

Our invention relates to temporary closures for the bung-holes oi' barrels, kegs, and the like containers and shi Mang-packages; and its novelty consists in the construction and adaptation of the parts, as will be more fully hereinafter pointed eut.

It not infrequently happens, especially in the brewery trade, that occasions arise when it is desirable to close the bung-hole ol a eask or barrel temporarily---ior instance, when a beer-keg is being treated by the pitching process. It might be argued that a bung sharply driven in the hole to close it would amply sut'- fice for the purpose; but it must be remembered that itl the closure is but temporary it must be withdrawn readily, as well as inserted easily.

The object of our invention is to provide a simple and eiiicient temporary closure et' the character (.lescribed.

In the drawings, Figure l is a partial ele# vation and longitudinal central section ot' a preferred Yform of our device. Fig. 2 is a plan view of the same beneath the plane et the line 2 2 in Fig. l. Fig. 3 is a similar view beneath the plane of the line 3 in Fig. l, showing-the parts before the grips are moved against the bushing; and Fig. It is a view similar to Fig. 3, showing the parts alter the grips have been moved against the busl1- ing. Fig. 5 is a detail perspective view oi one of the grips. Fig. (5 is a partial elevation and longitudinal central section ot a modified form ot our invention. Fig. 7 a plan view ol the same beneath the plane ot the line 7 7 in Fig. 6, showing the parts before the grips are moved against the bushing. Fig. 8 is a view similar to Fig. 7, showing the same parts after the grips have been moved against the bushing. Fig. 9 is a perspective detail et' one of the grips shown in Figs. 6, 7, and 8.

`W e will lirst describe the form of our invention shown in Figs. l, Q, 3, 4, and and will afterward point ont the variations therefrom in the `l'orms shown in the other ligures. I n the drawings, 20 is a part oi the wall el a barrel, keg, or similar receptacle, and 2l isa conical bushing, made ot' iron or other suitable material, secured thereto to iorm the walls ol a bung-hole 22. 30 is an upper plate oli a piston, 3l being the lower plate and 32 an intermediate packing of any suitable tabrie or material. The plates Si() and 3l are oli' slightly smaller diameter than the packing 32, and the latter is intended to term a. tight lit against the bushingQl. Arod 33, secured to both plates in any suitable manner, serves to draw them together to colnpress the packing and hold it securely in place. alla() are grips intended to be moved outward against the lmshing 2l and to lirmly press against the same, the outer contact-surface al being roughened in order more eilieieiitly to accomplish such purpose. Each grip is provided with an inwarily-extending V[lange a2, movable between guides Vformed by two plates and 3l, secured to the plate 230. Springs 43, secured to these plates, serve to retract the grips inwardly after they have been moved outward, posts tai. limiting their inward movement. A, centra-l post 5l), lorniing an upper extension of the rod 83, connecting the pistonplates, provided withan annular groovel. l\/l.ounted over, around, and embracing this post is a tubular stem 52, provided at its top with a, transversely-placed rod 53)., forming a handle, and provided also wi th one or more apertures to admitet the insertion ot' screws 5i 54C or similar means to engage with the groeve 51 to hold" the stem 52 in position. At the bottom oi" the stem and substantially parallel to the piston is a plate or disk a5, cut to lorm two cams 56 and 57 in the terms oli semi.- circles the centers ot which are eccentric to the center of rotation oli the stem .32, so that when the stem is rotated the YFaces oi" the cams 56 and 57 press upon the rear ot the grips et() to force them outward against the bushing,

as shown in Fig. 4, while the continued rotation of the stem 52 causes the extremity of the cani 58 to pass out of contact with the grip, and the latter is retracted. In Fig. 3 the cams are shown rotatable from left to right and in Fig. 4 in the reverse direction.

In Figs. 6 to 9, inclusive, we have illustrated a modified form of the device. In these gures the piston-plates 30 and 31 and packing 32 are the same as before. rlhe central post is longer, and so is the tubular stem 52. In place of the grips being constructed as before they are formed of roughened pieces 400 at the extremities of a dependent piece 401, bent at 402 and 403 to form a cross-plate 404, made integral with or secured to said pieces 401. A tubular sleeve 500 turns freely on the post 50. In this construction the rotation of the handle 53 moves the cams 56 and 57 outwardly against the piece 401 and forces the grips 400 400 against the bushing as before, while the continued rotation of the handle will release the grips from their outward pressure when the extremity of the cams has ceased to contact with the grips. In this construction the inherent elasticity of the piece 401 acts as a spring' to retract the grips away from the bushing.

That we claim is- 1. A temporary closure for the bung-holes of barrels and the like,comprising a piston consisting of plates with a soft packing between, a plurality of grips separate from the piston and adjacent to one of the plates thereof and radially movable, and means adapted to press them outward against the walls of the hole and automatically retract them to place when the pressure is released.

2. A temporary closure for the bung-holes of barrels and the like,comprising a piston consisting of plates with a soft packing between, a plurality of grips separate from the piston and adjacent to one of the plates thereof and radially movable, and means adapted to press them outward against the walls of the hole and automatically retract them to place when the pressure is released, consisting of a cam-disk and means for rotating the same and a spring secured to each grip and to a fixed part of the device.

3. A temporary closure for the bung-holes of barrels and the like, comprising a piston adapted to fit the hole, one or more outwardlymovable grips separate from and outside of said pist-on, and means adapted to move the grips against the walls of the hole and retract the same after such movement consisting of a cam-disk pivoted at the center of the piston, and retracting-springs.

4. A temporary closure for the bung-holes of barrels and the like, comprising a piston adapted to fit the hole, one or more outwardlymovable grips separate from and outside of said piston, and means adapted to move the grips against the walls of the hole and retract the same after such movement consisting of a cam-disk pivoted at the center of the piston and less in area than the surface thereof, whereby being continuously rotated, said disk will first press Lthe grips and then release them.

5. A temporary closure for the bung-holes of barrels and the like. comprising a piston adapted to fit the hole, a plurality of outwardlymovable grips separate from and ou tside of the piston, and means adapted to move the grips against the walls of the hole, comprising acontinuously-rotatable disk provided with a plurality of cam projections at its periphery adapted to press against said grips, means for continuously rotating said multiple-cam disk, and means for retracting the grips after said movement.

6. A temporary closure for the bung-holes of barrels and the like, comprising a piston adapted to fit the hole, a central outwardlyprojecting post, oppositely-disposed grips provided with retracting-springs, a continuouslyrotatable disk provided with cam projections at its periphery, one for each grip, and a handle mounted on the post adapted to continuously rotate said post and the multiple-cam disk.

Iitness our hands this 15th day of April, 1904, at the city of New York, in the county and State of New York. AUGUST I-IOERR.-

JACOB BOERSCHINGER.

Titnessesz S. HOFFMANN, RUDOLF ALTERT. 

